var body: some Commands {
    CommandMenu("Card") {
        Button(action: { 
            // 对齐左操作...
        }) {
            Text("Align Left")
        }
        .keyboardShortcut("{", modifiers: .option)

        Button(action: {
            // 对齐右操作...
        }) {
            Text("Align Right")
        }
        .keyboardShortcut("}", modifiers: .option)
    }
}